Finding the Fourth Proportional to 74,601.62, 102,971.97 and 48,763.92
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Solution
The fourth proportional to 74,601.62, 102,971.97 and 48,763.92 is: 67,308.42
Step by Step Solution
- Step 1: Write the proportion equation
74,601.62 : 102,971.97 = 48,763.92 : x - Step 2: Convert to fraction form
74,601.62/102,971.97 = 48,763.92/x - Step 3: Cross multiply
74,601.62x = 102,971.97 × 48,763.92 - Step 4: Simplify right side
74,601.62x = 5,021,316,907.32 - Step 5: Solve for x
x = 5,021,316,907.32/74,601.62 - Step 6: Final answer
x = 67,308.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.